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Typical products have gold- or nickel-plated copper terminals and thermoplastic housings.
China companies categorize automotive wire harnesses by wire sectional area. Units that are 0.5sqmm are mainly for indicator, door and top lights, and those with 0.75sqmm for license, front, back and brake lights. Variants for turning and fog lights have 1sqmm, and kinds for horns, 1.5sqmm. For engines, the options are 2.5 to 4sqmm.
Mainstream models have copper terminals plated with gold or nickel, and come in thermoplastic housings. In general, most suppliers emphasize customization capability, and generate 80 percent of business from OEM and ODM projects.
Makers source main materials such as copper, gold, nickel and thermoplastic from domestic providers, although some use imported versions, particularly of the last. So far, supply remains stable and costs have not changed significantly, keeping price increases at bay in the past year. This trend is forecast to persist until 2016.
Here's a selection of automotive wire harnesses from China.

The model JWHA015-S62 automotive wire harness from Dongguan Jiuwang Electronic Co. Ltd uses a copper conductor, AVSS-type cable and sealing plug. The gray-sheathed conductor is 7x0.28mm and the black counterpart 7x0.26mm. The unit conforms to the UL standard. The minimum order requirement is 5,000 units. Delivery is within 10 days.

Dongguan Suonai Electronic Co. Ltd's model SN-091 automotive wire harness has microphone, CVBS, USB and amplifier wires, which are 80cm long. The cable length can be customized. The product has a copper conductor and black PVC shell. It meets CCC, CE, RoHS, UL and VDE requirements. The minimum order is 500 units, and the delivery lead time is 20 days.

Qingdao Hainr Wiring Harness Co. Ltd offers an automotive wire harness, model HN001, which is compatible with Tyco, Delphi, Bosch, Deutsch, Yazaki, Sumitomo and FCI counterparts. The model comes in custom colors and cable lengths. It complies with CCC, CDA, CE, RoHS, UL and VDE. The maker requires a minimum order of 1,000 units. Delivery is within 15 days.

This wire harness, WH-20019-R1 model, from Suntek Electronics Co. Ltd is for automotive engines. Its cable length and color can be customized. The minimum order is 100 units, and the delivery lead time is 45 days.

Xiamen Oseisy Industry & Trade Co. Ltd's model AU-0001 automotive wire harness has tinned- or bare-copper conductor with a nominal cross-sectional area of 0.5 to 8sqmm, and XLPE overmolding. The wire's outer diameter is 1.8mm.
The unit features a connector made of PBT with 15 percent glass fiber. Its rated temperature is 120 C. The product exhibits fatigue and weather resistance, low coefficient of friction and water absorption, and self-lubricating property. It is UL-listed.
The minimum order is 1,000 units, and the delivery lead time is 30 days.

Yueqing Shangxin Plastic Co. Ltd's model 1 wire harness for automotive applications has a copper conductor, and comes in custom cable lengths and colors.
The supplier requires a minimum quantity of 500 units, and delivers orders within 7 days.
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